The Chelsea 890LEFJW-K5XS or 890LEFJWK5XS is a hydraulic PowerShift PTO assembly from the Chelsea 890 Series, engineered specifically for Allison 3000 MD and 4000 HD series transmissions. It mounts via a 10-bolt pattern and positions the pump output to the rear of the transmission, giving the clearance that tight frame-rail installations demand. The one-piece main shaft eliminates the spline joint between the PTO and output extension, and the clutch is located at the rear of the housing to keep the gear section tucked close to the transmission. The SAE C ("XS") output shaft runs Wet Spline lubrication to extend pump shaft life in demanding service. Continuous-duty torque capacity reaches 670 lb-ft, and shaft power output is rated at 64 HP at 500 RPM or 128 HP at 1000 RPM. Typical applications include aerial trucks, fire and rescue, refuse, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Chelsea 890 Series, Part Number 890LEFJW-K5XS or 890LEFJWK5XS
Fits Allison 3000 MD and 4000 HD series transmissions via 10-bolt mount
Hydraulic PowerShift engagement
SAE C ("XS") output shaft with Wet Spline lubrication for extended pump shaft life
One-piece main shaft eliminates input splines between PTO and output extension, improving durability
Shaft power: 64 HP at 500 RPM, 128 HP at 1000 RPM; continuous torque up to 670 lb-ft
Positions pump flange to rear of transmission for improved clearance in tight frame-rail installations
Tech Specs
- Product Series: 890
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C ("XS") Output
- Outlet Flange Type: SAE C
- Lubricant: Wet Spline
- Intermittent Torque: 501+ lb-ft
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Output Power: 56+ HP
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
Parts manual and diagrams: Chelsea 890 Series PTO parts list with prices
